Swinging mechanism of swinging sofa and swinging sofa

Abstract

The swinging mechanism comprises a bottom frame, a seat frame and a swinging driving device, a plurality of rotating points are arranged between the seat frame and the bottom frame, the seat frame rotates around the rotating points so as to swing relative to the bottom frame, and the swinging driving device comprises a power shaft, a driving mechanism and a driving mechanism, the transmission shaft and the power shaft are arranged at intervals in the axial direction, and the power shaft is in transmission connection with the transmission shaft; a transmission belt is arranged between the power shaft and the transmission shaft / between the two transmission shafts; a connecting assembly is arranged on the transmission belt, the connecting assembly comprises a flexible connecting piece, and the flexible connecting piece is matched with the transmission belt and provides a deformation degree so as to be suitable for changing the horizontal movement of the transmission belt into the rotation action of the seat frame around the rotation point; the structure that the flexible connecting piece is matched with the transmission belt is arranged, and due to the fact that the flexible connecting piece can provide the adaptive deformation degree, when the transmission belt moves horizontally, the deformation degree can enable the seat frame to rotate around the rotating point more smoothly.

Description

Technical Field

[0001] The present invention relates to the technical field of household products, and particularly to a rocking mechanism and a rocking sofa of a rocking sofa. Background Art

[0002] In modern society, with the improvement of living quality and the diverse pursuit of leisure and entertainment methods by people, various devices with rocking functions have gradually integrated into people's daily lives, such as baby rockers, leisure hanging baskets, massage chairs, and amusement facilities in certain theme parks or playgrounds. These devices simulate natural rocking movements to provide users with the effects of relaxing the body and mind and relieving stress. Even in some medical or rehabilitation fields, rocking movements are also used for assisted treatment or promoting physical recovery. As the core component in these devices, the performance of the rocking mechanism directly affects the user experience and the safety of the device. Traditional rocking mechanism designs are diverse, but generally use gear transmission, link mechanisms, or complex crank-slider systems to achieve the rocking movement. Although these designs can meet the basic rocking requirements to a certain extent, they are often accompanied by problems such as complex structures, numerous components, high noise, difficult maintenance, and non-smooth and stable rocking movements.

[0003] When the existing rocking mechanism realizes the rotational swing of the seat frame around the rotation point, there are obvious defects in the transmission structure of its driving device. When it is necessary to transmit the movement of the power shaft to the seat frame to achieve the rocking of the seat frame, most traditional solutions use rigid connection structures or simple transmission components, lacking flexible components that can provide sufficient deformation during the transmission process. As a result, during the process of the power shaft driving the seat frame through the transmission belt, the problem of converting linear motion into rotational motion cannot be effectively solved. Due to the lack of the deformation provided by the flexible connector, the horizontal movement of the transmission belt is difficult to smoothly convert into the rotational movement of the seat frame around the rotation point, resulting in possible problems such as unsmooth transmission, low motion accuracy, and even jamming in the rocking movement of the seat frame, seriously affecting the use effect and reliability of the rocking mechanism. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a rocking mechanism and a rocking sofa of a rocking sofa.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A rocking mechanism of a rocking sofa, including a bottom frame, a seat frame, and a rocking drive device disposed between the two. There are multiple rotation points between the seat frame and the bottom frame. The rocking drive device is configured to drive the seat frame to rotate around the rotation point to rock relative to the bottom frame. The rocking drive device includes:

[0007] A power shaft rotatably disposed on the chassis, and

[0008] At least one transmission shaft axially spaced from the power shaft, the power shaft being drivingly connected to at least one transmission shaft;

[0009] Wherein, a transmission belt is disposed between the power shaft and the transmission shaft or between two transmission shafts; a connection assembly is disposed on the transmission belt, and the transmission belt is attached to the seat frame by the connection assembly so that the transmission belt pulls the seat frame through the connection assembly;

[0010] Wherein, the connection assembly includes a flexible connecting member configured to cooperate with the transmission belt to provide a degree of deformation suitable for converting the horizontal movement of the transmission belt into a rotational movement of the seat frame around the rotation point, so that the seat frame swings relative to the chassis.

[0011] Further, the flexible connecting member is a rubber connecting member, and the connection assembly includes: a fixing member fixed to the transmission belt, and a connecting shaft and the rubber connecting member sequentially fixed to the fixing member, and the other end of the rubber connecting member is fixed to the seat frame.

[0012] Further, the flexible connecting member includes a first rubber connecting member and a second rubber connecting member, and the connection assembly includes: a fixing member fixed to the transmission belt, and the first rubber connecting member, a first connecting shaft and the second rubber connecting member sequentially fixed to the fixing member, and the other end of the second rubber connecting member is fixed to the seat frame.

[0013] Further, the flexible connecting member is a flexible belt, and the connection assembly includes: a fixing member fixed to the transmission belt, and a flexible belt fixed to the fixing member, wherein both ends of the flexible belt are fixed to the seat frame in the length direction of the chassis.

[0014] Further, the swing driving device includes: a power shaft and a transmission shaft drivingly connected to the power shaft, and the transmission belt is disposed between the power shaft and the transmission shaft.

[0015] Further, the swing driving device includes: a power shaft, a first transmission shaft and a second transmission shaft drivingly connected to the power shaft, and the transmission belt is disposed between the first transmission shaft and the second transmission shaft.

[0016] Further, a first pulley is disposed on the power shaft, a second pulley is disposed on the first transmission shaft, the diameter of the second pulley is larger than the diameter of the second pulley, and a driving belt is disposed between the first pulley and the second pulley.

[0017] Further, a third pulley is disposed on the power shaft, a fourth pulley is disposed at the axial end of the first transmission shaft, a fifth pulley is provided in the middle of the first transmission shaft, a sixth pulley is provided in the middle of the second transmission shaft, and the diameter of the sixth pulley is greater than that of the fifth pulley.

[0018] Further, a first drive belt is disposed on the third pulley and the fourth pulley, and a second drive belt is disposed between the fifth pulley and the sixth pulley.

[0019] A rocking sofa, the rocking sofa comprising the above-described rocking mechanism.

[0020] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a structure in which a flexible connector is matched with a transmission belt in a rocking drive device. Since the flexible connector can provide an appropriate degree of deformation, when the transmission belt moves horizontally, the degree of deformation can make the rotation action of the seat frame around the rotation point smoother. Specifically, the cooperation between the flexible connector and the transmission belt buffers and transforms the linear motion of the transmission belt through its own deformation, making the rocking motion of the seat frame more in line with the mechanical principle, and realizing the efficient transformation of the horizontal movement of the transmission belt into the rotation action of the seat frame; in addition, this design improves the motion accuracy. The precise degree of deformation provided by the flexible connector can precisely control the rotation angle and speed of the seat frame around the rotation point, making the rocking motion of the seat frame more in line with the design expectation, meeting the requirements of application scenarios with high requirements for motion accuracy, and improving the working reliability of the rocking mechanism.

[0022] 2. The present invention realizes the change of the transmission ratio through the configuration of different pulleys and the setting of drive belts, such as setting pulleys with different diameters (the diameter of the second pulley is greater than that of the first pulley, and the diameter of the sixth pulley is greater than that of the fifth pulley), so that the rocking speed can be adjusted more flexibly. This greatly increases the adjustable range of the rocking speed, and users can freely adjust the rocking speed of the rocking sofa according to their own preferences and actual needs, obtaining a personalized rocking experience and meeting the usage requirements of different users in different scenarios.

[0023] 3. The present invention provides different drive shaft configuration solutions (the power shaft is drivingly connected to two drive shafts, or the power shaft is drivingly connected to one drive shaft), which can be flexibly selected according to actual product requirements and design goals. This flexibility enables the rocking mechanism to adapt to different application scenarios and performance requirements, further enhancing the versatility and applicability of the product. Additionally, the design of different forms of connection components in the present invention, such as the use of rubber connectors or flexible belts, can not only effectively transmit power but also play a role in buffering and shock absorption, further ensuring the smoothness and stability of the rocking process, reducing the occurrence of jamming and unevenness, improving the user's comfort, and also contributing to extending the service life of the rocking sofa. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0025] Figure 1 is a three-dimensional structure diagram of the present invention.

[0026] Figure 2 is an exploded view of the structure of the present invention.

[0027] Figure 3 is a structure diagram of the rocking drive device of the present invention.

[0028] Figure 4 is an exploded view of the structure of the rocking drive device of the present invention.

[0029] Figure 5 is a structure diagram of the first embodiment of the connection component of the present invention.

[0030] Figure 6 is a structure diagram of the second embodiment of the connection component of the present invention.

[0031] Figure 7 is a structure diagram of the third embodiment of the connection component of the present invention.

[0032] Figure 8 is a structure diagram of the first embodiment of the rocking drive device of the present invention.

[0033] Figure 9 is a structure diagram of the second embodiment of the rocking drive device of the present invention.

[0034] Reference Numerals:

[0035] In the figure, 100. chassis; 110. drive base plate; 200. seat frame; 210. first swing rod; 220. second swing rod; 300. swing drive device; 310. power shaft; 311. first pulley; 312. second pulley; 313. third pulley; 314. fourth pulley; 315. fifth pulley; 316. sixth pulley; 317. drive belt; 318. first drive belt; 319. second drive belt; 320. transmission shaft; 321. first transmission shaft; 322. second transmission shaft; 330. first transmission wheel; 340. second transmission wheel; 350. motor; 400. transmission belt; 500. connection assembly; 510. fixing part; 520. connection shaft; 530. rubber connection part; 540. first rubber connection part; 550. first connection shaft; 560. second rubber connection part; 570. flexible belt; 600. bearing. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Generally, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0037] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] Unless otherwise defined, the technical terms or scientific terms used in this patent document shall have the ordinary meanings as understood by those of ordinary skill in the art to which this invention pertains. The terms "first", "second" and similar words used in the description of the present invention's patent specification and claims do not denote any order, quantity or importance, but are merely used to distinguish different components. Similarly, words such as "a", "an" or "the" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The following will, with reference to the accompanying drawings, elaborate on some embodiments of the present invention. Without conflict, the features in the following embodiments may be combined with each other.

[0041] I. Overall Structure

[0042] Please refer to Figures 1 - 4The present invention discloses a rocking mechanism of a rocking sofa and a rocking sofa, comprising a base frame 100, a seat frame 200 and a rocking drive device 300. The rocking sofa is a typical application product of the rocking mechanism, and is mainly composed of a seat body, a rocking mechanism and a control system. The base frame 100 is the basic supporting component of the entire mechanism, providing an installation base and stable support for other components; the seat frame 200 is a key component for realizing the rocking function, and can rock back and forth relative to the base frame 100; the rocking drive device 300 is a core component for power transmission and motion conversion, and transmits power to the seat frame 200 through a specific transmission structure to drive it to complete the rocking action. In practical applications, the base frame 100 can adopt a circular or triangular frame structure made of corrosion-resistant metal materials, and utilize its stability principle to improve the wind resistance and earthquake resistance of the mechanism in complex outdoor environments. In this example, there are multiple rotation points 700 between the seat frame 200 and the base frame 100, and the rocking drive device 300 is configured to drive the seat frame 200 to rotate around the rotation points 700 to rock relative to the base frame 100. The seat frame 200 and the base frame 100 are also connected by a four-bar linkage. The four connection points of the four-bar linkage are configured as rotation points 700. During the swinging process, the rods of the four-bar linkage rotate relatively, thereby driving the seat frame 200 to swing around the rotation point 700. The swing driving device 300 is fixed inside the base frame 100 through a driving base plate 110. The swing driving device 300 includes a power shaft 310 and at least one transmission shaft 320 axially spaced from the power shaft 310, and the power shaft 310 is in transmission connection with the at least one transmission shaft 320. The transmission shaft 320 is rotatably configured on the base frame 100. In this embodiment, a transmission belt 400 is configured between the power shaft 310 and the transmission shaft 320 or between the two transmission shafts. A connecting assembly 500 is configured on the transmission belt 400, and the transmission belt 400 is fixed to the seat frame 200 by the connecting assembly 500. Wherein, the connecting assembly 500 includes a flexible connecting member, which is configured to cooperate with the transmission belt and provide a degree of deformation suitable for converting the horizontal movement of the transmission belt 400 into a rotational movement of the seat frame 200 around the rotation point 700, thereby causing the seat frame 200 to swing relative to the base frame.

[0043] In this embodiment, the power shaft 310 is rotatably mounted on the base frame 100, and serves as a power input shaft connected to the motor 350. In a specific implementation, the power shaft 310 is configured as the output shaft of the motor 350. Ensure that power can be transmitted stably and reliably. In order to reduce the friction and wear of the power shaft 310 during rotation, bearings are arranged between the power shaft 310 and the base frame 100. These bearings can withstand radial loads, ensure the smooth rotation of the power shaft 310, and extend its service life. The transmission shaft 320 is axially spaced from the power shaft 310, and the transmission shaft 320 is also rotatably arranged on the base frame 100. According to different design requirements, the number of the transmission shaft 320 can be one or more. When a transmission shaft 320 is used, the transmission shaft 320 is directly connected to the power shaft 310, and the power on the power shaft 310 is directly transmitted to the transmission shaft 320 through the transmission belt 400; when multiple transmission shafts are used, the transmission shafts and the power shaft 310 are connected through multiple belts to form a complex transmission system to achieve a specific transmission ratio and motion effect. When installing the transmission shaft 320, it is also necessary to set a bearing between it and the base frame 100. In order to ensure the installation accuracy and stability of the transmission shaft 320, a special bearing seat 600 is provided on the base frame 100. The bearing seat 600 is fixed to the base frame 100 by bolts, the bearing is installed in the bearing seat 600, and the transmission shaft 320 passes through the inner ring of the bearing. This installation method can effectively fix the position of the transmission shaft 320, reduce its radial runout during rotation, and improve the stability and reliability of the transmission system. The transmission belt 400 is a key transmission component connecting the power shaft 310 and the transmission shaft 320. Its main function is to transmit motion to the seat frame 200 through the connecting assembly 500. The transmission belt 400 is usually made of rubber material, has good elasticity and wear resistance, and can maintain stable performance during a long period of transmission.

[0044] The pulleys (such as the first pulley 311, the second pulley 312, etc.) are fixedly mounted on the power shaft 310 and the transmission shaft 320, and cooperate with the transmission belt 400 to realize the transmission function. In this embodiment, the diameter size can be determined according to the requirements of the transmission ratio. For example, when the rotation speed of the transmission shaft 320 needs to be increased, the pulley diameter on the power shaft 310 can be made smaller than the pulley diameter on the transmission shaft 320. By adjusting the diameter ratio of the pulleys, different transmission effects can be achieved to meet the needs of the swing mechanism in different working scenarios.

[0045] 2. Embodiments of Different Transmission Structures

[0046] Embodiment 1:

[0047] In this embodiment, the swing drive device 300 includes only one transmission shaft 320. The power of the power shaft 310 is directly transmitted to the transmission shaft 320. Transmission wheels are arranged on both the power shaft 310 and the transmission shaft 320, and the transmission belt 400 is sleeved between the transmission wheels of the power shaft 310 and the transmission shaft 320. When the motor 350 drives the power shaft 310 to rotate, the power shaft 310 drives the transmission shaft 320 to rotate through the transmission belt 400. The transmission belt 400 is fixedly connected to the seat frame 200 by the connection assembly 500. This transmission structure is simple and has a low cost, and is suitable for scenarios where the requirements for swing speed and strength are not high. However, due to its short transmission path, in order to achieve sufficient swing strength, the power requirement for the motor 350 is relatively high. In practical applications, if the subsequent motor technology is upgraded to be able to provide greater torque and power, this single transmission shaft transmission structure will have higher practicability and cost performance.

[0048] Embodiment 2:

[0049] Please refer to Figure 8 , in this embodiment, the swing drive device 300 includes a power shaft 310, a first transmission shaft 321 and a second transmission shaft 322. A first transmission wheel 330 and a second transmission wheel 340 are respectively arranged on the first transmission shaft 321 and the second transmission shaft 322, and the transmission belt 400 is arranged between the first transmission wheel 330 and the second transmission wheel 340. The power shaft 310 drives the first transmission shaft 321 to rotate through the driving belt 317, and the first transmission shaft 321 then drives the second transmission shaft 322 to rotate through the transmission belt 400. This double transmission shaft transmission structure can achieve more complex motion transmission and speed transformation through multi-stage transmission. Compared with the single transmission shaft structure, it can reduce the power requirement for the motor 350 to a certain extent. At the same time, by reasonably designing the diameters and transmission ratios of each pulley, the swing speed and angle of the seat frame 200 can be accurately controlled to meet the personalized needs of different users for the comfort of the swing sofa. Embodiment 3:

[0050] Please refer to Figure 9, in this embodiment, a third pulley 313 is disposed on the power shaft 310, a fourth pulley 314 is disposed at the axial end of the first transmission shaft 321, a fifth pulley 315 is provided in the middle of the first transmission shaft 321, and a sixth pulley 316 is provided in the middle of the second transmission shaft 322. The diameter of the fourth pulley 314 is larger than that of the third pulley 313, and the diameter of the sixth pulley 316 is larger than that of the fifth pulley 315. A first drive belt 318 is disposed between the third pulley 313 and the fourth pulley 314, and a second drive belt 319 is disposed between the fifth pulley 315 and the sixth pulley 316. This multi-stage pulley transmission structure further increases the complexity and flexibility of the transmission system. The motor 350 drives the power shaft 310 to rotate. The third pulley 313 on the power shaft 310 drives the fourth pulley 314 on the first transmission shaft 321 to rotate through the first drive belt 318. The first transmission shaft 321 then drives the sixth pulley 316 on the second transmission shaft 322 to rotate through the fifth pulley 315 and the second drive belt 319. The sixth pulley 316 drives the second transmission wheel 340 to rotate, thereby driving the first transmission wheel 330 and the transmission belt to rotate. By setting pulleys with different diameters and multi-stage transmission, more precise speed regulation and torque amplification can be achieved, making the swinging motion of the seat frame 200 smoother and softer, while reducing the power requirement for the motor 350. However, this structure also has the disadvantages of higher cost and greater difficulty in installation and debugging, and precise calculations and assembly are required during the design and manufacturing process. III. Specific Embodiments of the Connection Assembly

[0051] The connection assembly 500 serves as a connection bridge between the transmission belt 400 and the seat frame 200. Its main function is to convert the linear motion of the transmission belt 400 into the back-and-forth swinging motion of the seat frame 200. According to different design requirements, the connection assembly 500 has various embodiments. The following will elaborate on several main embodiments involved in the claims in detail.

[0052] Embodiment 1:

[0053] Please refer to Figure 5, in this embodiment, the flexible connector is a rubber connector 530. The connecting assembly 500 includes a fixing member 510 fixedly connected to the transmission belt 400, and a connecting shaft 520 and a rubber connector 530 fixedly connected to the fixing member 510 in sequence. In this embodiment, the fixing member 510 is fixedly connected to the transmission belt 400 by bolts. The connecting shaft 520 is generally a cylindrical metal shaft, one end of which is fixedly connected to the fixing member 510 by threaded connection, and the other end is fixedly connected to the rubber connector 530. The rubber connector 530 has good elasticity and flexibility. One end of it is firmly combined with the connecting shaft 520, and the other end is fixed to the seat frame 200 (the first swing rod 210 or the second swing rod 220) by bolts. During the working process, when the transmission belt 400 moves left and right, the fixing member 510 moves synchronously with the transmission belt 400, and drives the rubber connector 530 to move through the connecting shaft 520. Since the rubber connector 530 has elasticity, it will deform during the movement, thereby converting the linear movement of the fixing member 510 into a pulling force on the seat frame 200, causing the seat frame 200 to swing back and forth around the rotation point of the four-bar mechanism connected to the chassis 100. The elastic characteristics of the rubber connector 530 can also buffer the impact force during the transmission process to a certain extent, reduce vibration and noise, and improve the running stability and comfort of the swing mechanism.

[0054] Embodiment 2:

[0055] Please refer to Figure 6 , in this embodiment, the flexible connector includes a first rubber connector 540 and a second rubber connector 560. The connecting assembly 500 includes a fixing member 510 fixedly connected to the transmission belt 400, and a first rubber connector 540, a first connecting shaft 550 and a second rubber connector 560 fixedly connected to the fixing member 510 in sequence. Compared with Embodiment 1, this embodiment adds a layer of rubber connector, further enhancing the elasticity and buffering performance of the connecting assembly 500.

[0056] The first rubber connector 540 and the second rubber connector 560 are both made of rubber material, and their structure and function are the same as the rubber connector 530 in the first embodiment. One end of the first rubber connector 540 is firmly connected to the fixing member 510, and the other end is fixedly connected to the first connecting shaft 550; the other end of the first connecting shaft 550 is connected to the second rubber connector 560, and the other end of the second rubber connector 560 is fixed on the seat frame 200. During the swinging process, the linear motion of the transmission belt 400 is transmitted to the first rubber connector 540 through the fixing member 510. The first rubber connector 540 undergoes elastic deformation after being subjected to force, and transmits the force to the first connecting shaft 550. The first connecting shaft 550 then transmits the force to the seat frame 200 through the second rubber connector 560. The setting of the two-layer rubber connector can better absorb the impact force and vibration during the transmission process, making the swinging motion of the seat frame 200 more stable and gentle.

[0057] Implementation method three:

[0058] See also Figure 7 In this embodiment, the flexible connecting member is a flexible belt 570. The connecting assembly 500 includes a fixing member 510 fixed to one end of the transmission belt 400, and a flexible belt 570 fixed to the other end of the transmission belt. The two ends of the flexible belt 570 in the length direction of the base frame 100 are respectively fixed to the first swing rod 210 and the second swing rod 220 of the seat frame 200. The fixing member 510 is fixed on the transmission belt 400, and its structure and connection method are the same as the fixing member 510 in the first two embodiments. When the transmission belt 400 moves left and right, the fixing member 510 drives the flexible belt 570 to move, and the two ends of the flexible belt 570 pull the first swing rod 210 and the second swing rod 220 of the seat frame 200 respectively, so that the seat frame 200 rotates around the rotation point to achieve a swinging motion. This connection method has a simple structure and low cost, and can flexibly adjust the swing amplitude and angle of the seat frame 200 by adjusting the length and installation position of the flexible belt 570.

[0059] The mounting frame 200 is provided with a first swing rod 210 and a second swing rod 220 which are spaced in the front-back direction of the chassis 100. The first swing rod 210 and the second swing rod 220 are key components connecting the connecting assembly 500 and the main structure of the mounting frame 200, and their main function is to transmit the pulling force of the connecting assembly 500 and drive the mounting frame 200 to perform a swinging motion. The first swing rod 210 and the second swing rod 220 have sufficient strength and rigidity to withstand the pulling force transmitted by the connecting assembly 500 and the inertial force generated during the swinging of the mounting frame 200. The lengths of the first swing rod 210 and the second swing rod 220 should be reasonably designed according to the overall dimensions of the mounting frame 200 and the requirements of the swinging amplitude. In this embodiment, the lengths of the two are equal and they are respectively distributed at the front and rear ends of the mounting frame 200. The first swing rod 210 and the second swing rod 220 can be fixed to the main structure of the mounting frame 200 by means of welding, bolt connection or riveting. The connecting assembly 500 is connected to the first swing rod 210 and / or the second swing rod 220 in various ways. As in the embodiment of the connecting assembly 500 described above, one end of the rubber connecting piece 530, the second rubber connecting piece 560 or the flexible belt 570 is directly fixed on the first swing rod 210 or the second swing rod 220; it can also be fixed on both the first swing rod 210 and the second swing rod 220 at the same time to improve the stability and reliability of the connection. During the connection process, it is necessary to ensure the firmness of the connection part to avoid loosening or falling off during the swinging process, which may affect the normal operation of the swinging mechanism.

[0060] As described above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A rocking mechanism of a rocking sofa, comprising a chassis, a seat frame and a rocking drive device disposed between the two. There are a plurality of rotation points between the seat frame and the chassis, and the rocking drive device is configured to drive the seat frame to rotate around the rotation points to rock relative to the chassis, characterized in that, The swing drive device includes: a power shaft rotatably disposed on the chassis, and at least one transmission shaft axially spaced from the power shaft, the power shaft being in transmission connection with at least one transmission shaft; Wherein, a transmission belt is disposed between the power shaft and the transmission shaft or between two transmission shafts; a connection assembly is disposed on the transmission belt, and the transmission belt is attached to the seat frame by the connection assembly so that the transmission belt pulls the seat frame through the connection assembly; Wherein, the connection assembly includes a flexible connecting member configured to cooperate with the transmission belt to provide a degree of deformation suitable for converting the horizontal movement of the transmission belt into a rotational movement of the seat frame around the rotation point, so that the seat frame swings relative to the chassis.

2. The swing mechanism according to claim 1, characterized in that, The flexible connecting member is a rubber connecting member, and the connection assembly includes: a fixing member fixed to the transmission belt, and a connecting shaft and the rubber connecting member sequentially fixed to the fixing member, and the other end of the rubber connecting member is fixed to the seat frame.

3. The swing mechanism according to claim 1, characterized in that The flexible connecting member includes a first rubber connecting member and a second rubber connecting member, and the connection assembly includes: a fixing member fixed to the transmission belt, and the first rubber connecting member, a first connecting shaft and the second rubber connecting member sequentially fixed to the fixing member, and the other end of the second rubber connecting member is fixed to the seat frame.

4. The swing mechanism according to claim 1, characterized in that The flexible connecting member is a flexible belt, and the connection assembly includes: a fixing member fixed to the transmission belt, and a flexible belt fixed to the fixing member, wherein both ends of the flexible belt are fixed to the seat frame in the length direction of the chassis.

5. The swing mechanism according to claim 1, characterized in that The swing drive device includes: a power shaft and a transmission shaft in transmission connection with the power shaft, and the transmission belt is disposed between the power shaft and the transmission shaft.

6. The swing mechanism according to claim 1, wherein The swing drive device includes: a power shaft, a first transmission shaft and a second transmission shaft in transmission connection with the power shaft, and the transmission belt is disposed between the first transmission shaft and the second transmission shaft.

7. The swing mechanism according to claim 6, characterized in that, A first pulley is disposed on the power shaft, a second pulley is disposed on the first transmission shaft, the diameter of the second pulley is larger than that of the second pulley, and a drive belt is disposed between the first pulley and the second pulley.

8. The swing mechanism according to claim 6, characterized in that, A third pulley is disposed on the power shaft, a fourth pulley is disposed at the axial end of the first transmission shaft, a fifth pulley is disposed in the middle of the first transmission shaft, a sixth pulley is disposed in the middle of the second transmission shaft, and the diameter of the sixth pulley is larger than that of the fifth pulley.

9. The swing mechanism according to claim 8, characterized in that, A first drive belt is disposed on the third pulley and the fourth pulley, and a second drive belt is disposed between the fifth pulley and the sixth pulley.

10. A rocking sofa, characterized in that, The swing sofa includes the swing mechanism according to any one of claims 1-9.

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